微信图片_20191221170620.jpg
class Solution:
# 返回合并后列表
def Merge(self, pHead1, pHead2):
# write code here
if pHead1 is None:
return pHead2
if pHead2 is None:
return pHead1
def judge(pHead1, pHead2, tmp):
while pHead1 and pHead2:
if pHead1.val < pHead2.val:
tmp.next = pHead1
tmp = tmp.next
pHead1 = pHead1.next
else:
tmp.next = pHead2
tmp = tmp.next
pHead2 = pHead2.next
if pHead1 is None:
tmp.next = pHead2
if pHead2 is None:
tmp.next = pHead1
pHead =pHead1 if pHead1.val < pHead2.val else pHead2
if pHead == pHead1:
tmp = pHead1
pHead1 = pHead1.next
judge(pHead1, pHead2, tmp)
return pHead
if pHead == pHead2:
tmp = pHead2
pHead2 = pHead2.next
judge(pHead1, pHead2, tmp)
return pHead
